Gearing.



W. H. GOLES.

GEARING.

APPLscATloN FILED ocT. 2o. 1913.

Patented July 10, 1917.

WALTER H. coLEs, or TROY, onto.

GEARING.

nasacae.

Specification of Letters Patent.

Patented July` 10, 191 7.

Application filed October 20, 1913. `Serial No. 796,159.

' to the ground to be irrigated and provided with a series of nozzlesthroughout their length. For distribution of the water it is alsocustomary to provide mechanism for automatically oscillating the pipeslongitudinally to continuously change the direction of the nozzles so asto distribute the water over as wide an area as possible. As

the nozzles are oscillated from side to side in the arc of a circle, ifthe oscillation is at a uniform speed less water will be distributed asthe nozzles reach a vertical position than when the nozzles approach ahorizontal position, inasmuch as when approaching the former position aslight change of direction of the nozzles covers for the falling watermuch more space than when approaching the latter position.

Moreover in distributing the water through the nozzles, it is frequentlydesired to change the general speed of the oscillation or rotation ofthe pipes.

My invention relates to apparatus for automatically effecting theoscillation or rotation of the water distribution pipes, both touniformly vary the speed of oscillation during each movement from sideto side and generally to change the rate of movement. A further objectis to provide means for automatically disconnecting the drivingmechanism should the operating mechanism become Vclogged in any way andthus to prevent breakage of any of the parts.

The invention consists of that certain novel construction andarrangement of parts to be hereinafter particularly pointed out andclaimed whereby the above results are attained in a most effective andsatisfactory manner.

In the drawings,

Figure 1 is a top plan view of my improved mechanism.

Fig. 2 is a side elevation of the saine.

Fig. 3 is a top plan view of the safety clutch mechanism.

Fig. 4 is a side elevation of the same, partly in cross section.

Fig. 5 is a portion of the construction as illustrated in Fig. 4, withone of the clutch members moving with relation to the other.

Fig. 6 is a side elevation of the latch for holding the shifting leverand the rock shaft.

Fig. 7 is a detail longitudinal section showing the pinion clutch forchanging the speed.

I have not thought it necessary to illustrate the system of irrigatingpipes as this forms no part of my present invention, and it will beunderstood that the oscillation or rotation of the pipes is impartedthrough the chain or cable which is connected with the pipe system andwhich is driven by my improved operating mechanism, as will behereinafter described.

The driving shaft 1 of my improved device is mounted in suitable journalboxes 2, 2, transversely on the base 3, and this shaft is continuouslydriven in either direction by belts and pulleys. In the embodiment of myinvention as illustrated, the shaft l is provided with two tight pulleys4f, 5, and two loose pulleys 6, 7. As indicated by the ar-v rows in Fig.2, one of the belts, as 8, is a directly running belt, and the other, as9, is twisted so as to run in the opposite direction. Mounted onsuitable supports 10, 10, at one end of the base, is the shifting lever11, carrying two sets of fingers 12 and 13, and this belt shifter' isoperated to shift the belts with each rotation of the main driving gearas will be hereinafter described, by the arm 14 which extends upwardlyfrom the shifting lever rock shaft 15 between the fingers 16, 16, on theshifting lever 11. The shaft 15 is mounted in suitable bearings andarranged to be rocked so as to transversely actuate the belt shifter.

Mounted on the shaft 1 is the driving pinion 17 which engages the gear18 keyed on the shaft 19, journaled in boxes 20, 20, on

the base parallel. to the shaft 1. This shaft 19 also carries the gear22 keyed thereon, which engages the gear 23 on a similarly mounted shaft24 journaled in the boxes 25, 25. This shaft 24 carries the pinion 26and its grooved collar 27. The pinion is in one position keyed to theshaft 24' to slide thereon by the key 23, engaging in the keyway 29 inthe pinion and collar. Mounted loosely on the same shaft 24 is the gear30, the hub 31 of which is provided with a clutch member to be engagedby the corresponding clutch member 32 on the pinion 26. The key 2S is ofsuch length that when the collar 27 and its pinion 26 is shifted by thehand lever 33, the pinion and collar will be disengaged from the shaft24 and the pinion will become clutched to the gear 30. YThis gear 30meshes with the pinion 34 loosely mounted on shaft 19 and this pinion issecured to or a part of the gear 35, alsoloosely mounted on the shaft19, which gear engages the pinion 36 loosely mounted on the shaft 1, andcarrying secured thereto, or a part thereof the loosely mounted gear 37.This gear engages the pinion 33 which is tight on the shaft 19.

VBy this arrangement of gears, I am enabled yto drive the gear 39mounted on the shaft 40, journaled in the box 41, at two very differentrates of speed.

lVhen the pinion 26 rides on the key so as to be connected to the shaft24, the gear 39 is driven by the train of gears 17, 1S, 22, 23

and 26. When the pinion 26 has been shifted to run loose on shaft 24 andto engage the gear 30, then the gear 39 is driven at a veiy much slowerVspeed with the train of gears and pinions 17, 18, 33, 37, 36, 35, 34, 30and 26. l

In this way, I provide for the two driving speeds.

The shaft 40 carries the pinion 42 and meshes with the gear 43 on shaft44, mount- '1 ed in journal boxes 45 on the base. On the outer end ofthe shaft 44 is mounted the eccentric gear 46, which meshes with asimilar eccentric gear 47 on the shaft 4S, mounted in the journal boxes49, 49 on the base. This 'shaft 48 carries the pulley 50 over which runsthe chain or cable 51, which is connected with the pipe system to beoscillated by my apparatus.

The cable 51 is so connected to the irrigating apparatus that when theirrigating nozzles are at their vertical position, the ec centric gear47 will have its shortest diameter in mesh with the longest diameter ofthe corresponding eccentric gear 46, so that at this point the pulleyand the cable 51 will be moving at its slowest rate. While on the otherhand, when the eccentric gears are in opposite position, the pulley andcable will be moving at its highest rate of speed.

In order that the movement of the pulley 50 may be reversed with eachrotation, the gear 43 is provided with a pin 52 projecting from its facewhich is arranged to come in contact with the outer end of the arm 53 onY the rock shaft 15, and thus to shift the belt shifter to change thebelts and reverse the movement of the driving shaft.

In order to hold the rock shaft in either of the two positions to whichit is rocked by the pin 52 contacting with the arm 53, I provide a latchlever 54 (Fig. 6), pivoted on the bracket 55 on the base and providedwith a tooth 56 to engage a corresponding notch in the collar 57 mountedon the shaft 15. The latch is held in engagement with the notched collarby the spring 5S. Y

In order to prevent any damage that might occur from any foreign mattergetting in the gearing or from overloading, I`

provide a clutch and automatic release for the driving shaft 1. Thepinion 17 is mounted loosely on the shaft 1 and carries one member ofthe clutch 60. This member 60 is a circular disk with a peripheralflange 61, which flange lits over the central hub portion 62 on the disk63, forming the other member of the clutch. The disk 63 is securedtightly on the shaft 1 and always rotates with it. rThe flange 61 isprovided with a radial socket in which is loosely tted a dog 64 having abeveled end 65 to enter a V-shaped notch 66 in the periphery of the hub62. A spring 67 is secured to the flange 61, and bears upon the dog tohold the same in engagement with the notch under normal conditions.

Should the gearing be stopped for any reason, the driving shaft willcontinue to rotate, but the dog will be forced out of the notch 66against the pressure of the spring 67, as shown in Fig. 5, and in thisposition the pin 68 on the spring plate 69 will engage in the recess 70in the dog and hold the dog out of engagement with the periphery of thehub 62 and in this way the driving shaft will be entirely disengagedfrom the mechanism. In order to return the clutch to operative position,I provide the lever 71, the inner end of which bears upon the springplate 69. By turning the lever 71 midway between its two oppositepositions, the plate 69 is raised and with it the pin 68, thus releasingthe dog, so that as the hub is rotated the dog will be forced into thenotch and thus the two clutch members will be `locked together.

Inorder to set the device for the next ac-i cidental stoppage oroverload, a 'plate 73 is secured to the base and the outer"v end of thelever 71 strikes against the plate and returns the lever to its normalposition.

lVith my improvements, therefore, no possible damage can result from aconstant drive of the driving shaft and a stoppage of the gearing oroverloading of the system.

The moment this occurs the clutch with the driving shaft isautomatically released.

lt is understood that the location of the safety clutch need not be onthe driving shaft, the only requisite for its position being that itshall cut olf the power from applying itself to the pulley 5l whichoscillates the sprinklers. It could well be mounted on the shaft 44, forexample, or on the shaft 48.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is

l. ln an operating device, a train of driving gears, gearing for slowspeed and gea-ring for high speed, operatively connected to the drivinggears, and gearing connected to the member to be operated and to theslow and high speed gearing, a clutch connected to the driving gears,and means for driving the clutch, said clutch having automaticallyreleasable means for disconnecting its parts upon stoppage of eithertrain of high or low speed gearing.

2. In an operating device, a driving shaft, gearing to be driven, aclutch for transmission of power between them, said clutch havingautomatically releasable means for unclutching it upon stoppage of thegearing to be driven, and means for retaining it in unclutched position.

3. ln an operating device, a driving shaft, gearing to be driven, aclutch for transmission of power between them, said clutch having aspring-held connection between the parts thereof, and .means forautomatically holding the parts out of connection, for the purposedescribed.

4. In an operating device, a driving shaft, a train of driving gears, agearing for slow speed and a gearing for high speed operativelyconnected to the driving gears, a clutch connecting` the driving shaftto the train of driving gears, spring-held means comprising part of theclutch for automatically disconnecting the clutch upon stoppage of anyof the gears, and-means for automatically holding the clutch indisconnected position.

5. ln an operating device, a driving shaft, gearing to be driven, a.clutch connecting the said gearingand shaft, spring-held means forautomatically disconnecting the clutch upon. stoppage of the gearing tobe driven, spring-held means for holding the former spring-held means indisconnected position, means for releasing the latter spring-held means,and means for automatically throwing it into operative position again,for the purpose described.

6. ln an operating device, a driving shaft, gearing to be driven, aclutch connecting said shaft and gearing comprising a dog, and means forautomatically releasing it upon stoppage of the gearing to be driven, a

pin adapted to hold said dog in released position, means for actuatingthe pin, means for withdrawing the actuatin` means, and means forautomatically `releasing said means, for the purpose described.

7. ln an operating device, a driving shaft, a train of driving gears, adriven gearing, a train of gearing for slow speed, a train of gearingfor high speed, said gear trains comprising intermeshing gears andshafts, and means to shift one of the pinions of the driven gearing toengage either speed train as desired.

8. In an operating device, a driving shaft, a slow speed gear mechanismand a high speed gear mechanism, an operative connection between saidslow and high speed mechanisms and the driving shaft, comprising aclutch, said clutch having automatically releasable means for altogetherunclutching it, gearing to be driven and a shiftable connection from theslow and high speed mechanisms to said gearing to be driven.

9. ln an operating device, a driving shaft, a slow speed gear mechanismand a high speed gear mechanism, an operative connection between saidslow and high speed mechanisms and the driving shaft, comprising aclutch, said clutch having automatically releasable means for altogetherunclutching it, gearing to be driven and a shiftable connection from theslow and high speed mechanisms to said gearing to be driven, saidgearing to be driven comprising in part eccentric gears for varying thespeed of operation for any mechanism to be operated thereby, for bothslow and fast driving.

10. In an operating device, a driving shaft, a slow speed gear mechanismand a high speed gear mechanism, an operative connection between saidslow and high speed mechanisms and the driving shaft, comprising aclutch, said clutch having automatically releasable means for altogetherunclntching it, gearing to be driven and a shifting connection from theslow and high speed mechanisms to said gearing to be driven, saidgearing to be driven comprising in part eccentric gears for varying thespeed of operation for any mechanism to be operated thereby, for bothslow and fast driving, and means for automatically reversing the drivingshaft, after each operation of the ec-V centric gears.

ll. In an operating device, a driving shaft, a slow speed gear mechanismand a high speed gear mechanism, an operative connection between saidslow and high speed mechanisms and the driving shaft, comprising aclutch, said clutch having automatically releasable means for altogetherunclutching it, gearing to bedriven and a shifting connection from theslow and high speed mechanisms to said gearing to be driven, saidgearing to be driven comprising in part eccentric gears for Varying thespeed driving shaft, belt shifting means and a, of operation for anymechanism to beoper- Contact element cnksztid drlven gearing for atedtlie1eby,f0r both slow and fast drlving, operating the belt shifter.

and means for automatically reversing the WALTER H. GOLES. drivingshaft, after each operation of the Attest:

eccentric gears, comprising pulleys and for- ANNA F. DIENST,

ward and reverse belts or operating the HELEN L. AICHHOLZ.

Copies of this patent may he obtain'e for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

